ui/app_list/views/search_box_view.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef UI_APP_LIST_VIEWS_SEARCH_BOX_VIEW_H_
   6 #define UI_APP_LIST_VIEWS_SEARCH_BOX_VIEW_H_
   7
   8 #include <string>
   9
  10 #include "ui/app_list/search_box_model_observer.h"
  11 #include "ui/app_list/speech_ui_model_observer.h"
  12 #include "ui/views/controls/button/image_button.h"
  13 #include "ui/views/controls/button/menu_button_listener.h"
  14 #include "ui/views/controls/textfield/textfield_controller.h"
  15 #include "ui/views/view.h"
  16
  17 namespace views {
  18 class ImageView;
  19 class MenuButton;
  20 class Textfield;
  21 }  // namespace views
  22
  23 namespace app_list {
  24
  25 class AppListMenuViews;
  26 class AppListModel;
  27 class AppListViewDelegate;
  28 class SearchBoxModel;
  29 class SearchBoxViewDelegate;
  30
  31 // SearchBoxView consists of an icon and a Textfield. SearchBoxModel is its data
  32 // model that controls what icon to display, what placeholder text to use for
  33 // Textfield. The text and selection model part could be set to change the
  34 // contents and selection model of the Textfield.
  35 class APP_LIST_EXPORT SearchBoxView : public views::View,
  36                                       public views::TextfieldController,
  37                                       public views::ButtonListener,
  38                                       public views::MenuButtonListener,
  39                                       public SearchBoxModelObserver,
  40                                       public SpeechUIModelObserver {
  41  public:
  42   SearchBoxView(SearchBoxViewDelegate* delegate,
  43                 AppListViewDelegate* view_delegate);
  44   virtual ~SearchBoxView();
  45
  46   void ModelChanged();
  47   bool HasSearch() const;
  48   void ClearSearch();
  49   void InvalidateMenu();
  50
  51   views::Textfield* search_box() { return search_box_; }
  52
  53   void set_contents_view(views::View* contents_view) {
  54     contents_view_ = contents_view;
  55   }
  56
  57   // Overridden from views::View:
  58   virtual gfx::Size GetPreferredSize() const OVERRIDE;
  59   virtual void Layout() OVERRIDE;
  60   virtual bool OnMouseWheel(const ui::MouseWheelEvent& event) OVERRIDE;
  61
  62  private:
  63   // Updates model text and selection model with current Textfield info.
  64   void UpdateModel();
  65
  66   // Fires query change notification.
  67   void NotifyQueryChanged();
  68
  69   // Overridden from views::TextfieldController:
  70   virtual void ContentsChanged(views::Textfield* sender,
  71                                const base::string16& new_contents) OVERRIDE;
  72   virtual bool HandleKeyEvent(views::Textfield* sender,
  73                               const ui::KeyEvent& key_event) OVERRIDE;
  74
  75   // Overridden from views::ButtonListener:
  76   virtual void ButtonPressed(views::Button* sender,
  77                              const ui::Event& event) OVERRIDE;
  78
  79   // Overridden from views::MenuButtonListener:
  80   virtual void OnMenuButtonClicked(View* source,
  81                                    const gfx::Point& point) OVERRIDE;
  82
  83   // Overridden from SearchBoxModelObserver:
  84   virtual void IconChanged() OVERRIDE;
  85   virtual void SpeechRecognitionButtonPropChanged() OVERRIDE;
  86   virtual void HintTextChanged() OVERRIDE;
  87   virtual void SelectionModelChanged() OVERRIDE;
  88   virtual void TextChanged() OVERRIDE;
  89
  90   // Overridden from SpeechUIModelObserver:
  91   virtual void OnSpeechRecognitionStateChanged(
  92       SpeechRecognitionState new_state) OVERRIDE;
  93
  94   SearchBoxViewDelegate* delegate_;  // Not owned.
  95   AppListViewDelegate* view_delegate_;  // Not owned.
  96   AppListModel* model_;  // Owned by the profile-keyed service.
  97
  98   scoped_ptr<AppListMenuViews> menu_;
  99
 100   views::ImageView* icon_view_;  // Owned by views hierarchy.
 101   views::ImageButton* speech_button_;  // Owned by views hierarchy.
 102   views::MenuButton* menu_button_;  // Owned by views hierarchy.
 103   views::Textfield* search_box_;  // Owned by views hierarchy.
 104   views::View* contents_view_;  // Owned by views hierarchy.
 105
 106   DISALLOW_COPY_AND_ASSIGN(SearchBoxView);
 107 };
 108
 109 }  // namespace app_list
 110
 111 #endif  // UI_APP_LIST_VIEWS_SEARCH_BOX_VIEW_H_